diff --git a/instructor/anthropic_utils.py b/instructor/anthropic_utils.py
index 6aecd64..7f6b12f 100644
--- a/instructor/anthropic_utils.py
+++ b/instructor/anthropic_utils.py
@@ -9,7 +9,7 @@ try:
     import xml.etree.ElementTree as ET
 except ImportError:
     import warnings
-warnings.warn("xmltodict and xml.etree.ElementTree modules not found. Please install them to proceed. `pip install xmltodict`", ImportWarning)
+    warnings.warn("xmltodict and xml.etree.ElementTree modules not found. Please install them to proceed. `pip install xmltodict`", ImportWarning)
 
 
 T = TypeVar("T", bound=BaseModel)